[    4.385364] ip (857) used greatest stack depth: 12120 bytes left
[   29.414277] ip (2371) used greatest stack depth: 12104 bytes left
[   56.497826] ip (4432) used greatest stack depth: 12080 bytes left
[  520.713025] pm_nl_ctl (24835) used greatest stack depth: 11944 bytes left